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Solid hydrolysis hydrogen production material

A technology for hydrogen production and water-absorbing materials by hydrolysis, which is applied in the production of hydrogen, metal hydrides, inorganic chemistry, etc., can solve the problems of inconvenient storage and use of sodium borohydride solution, capacity loss, etc., achieve obvious effects, improve uniformity, Effect of increasing hydrogen production

Active Publication Date: 2017-03-15
苏州清德氢能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problems of inconvenient storage and use of sodium borohydride solution and capacity loss, the present invention provides a material suitable for hydrolysis of solid sodium borohydride to produce hydrogen, which is easy to carry and use, has high hydrogen production capacity, and fully guarantees the completeness of the hydrolysis reaction

Method used

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Effect test

Embodiment 1

[0035] Nickel chloride hexahydrate (NiCl2 ·6H 2 O) 0.12g was dissolved in 5mL deionized water, and 0.05g of melamine sponge (apparent volume about 7cm 3 ) cut into 0.2×0.2×5cm 3 strips, the above NiCl 2 The solution is absorbed, and the water is evaporated to dryness at 200°C in a drying oven, and the NiCl 2 Dehydration to anhydrous NiCl 2 , the sponge is brownish-yellow as a whole.

[0036] NaBH 4 2.0g with NiCl loaded above 2 The sponges are packaged together in a plastic reaction tube with an inner diameter of 1.0 cm and a height of 10 cm. First, the sponge strips are vertically placed in the tube, and then NaBH 4 Powder, NaBH 4 The powder automatically falls into the gap of the plastic tube. Add 8mL of deionized water at 25°C, the system generates hydrogen quickly and uniformly, and generates H within 48min. 2 4.8L, see figure 1 , there was no flowing liquid in the container after the reaction, and the sponge was black.

Embodiment 2

[0038] Cobalt chloride hexahydrate (CoCl 2 ·6H 2 O) 1.5g dissolved in 10mL deionized water, melamine sponge 0.07g (approximate volume 10cm 3 ) cut into 1mm 3 For pellets, the above CoCl 2 The solution is absorbed, and the water is evaporated to dryness at 200°C in a dry box, and the CoCl 2 Dehydration to anhydrous CoCl 2 , the overall color of the sponge is blue.

[0039] Load the above with CoCl 2 Sponge pellets with NaBH 4 Mix the ground powder, put it into a glass reactor with an inner diameter of 2.5cm and a height of 12cm, slowly add tap water at a rate of 0.15mL / min through a peristaltic pump, and the system will generate hydrogen gas evenly. The first 60min will generate 15.0L of hydrogen gas, with an average rate of 250mL / min , producing a total of 19.0L of hydrogen, see figure 2 .

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Abstract

The invention discloses a solid hydrolysis hydrogen production material which is characterized by comprising a solid NaBH4, a transition metal salt catalyst and a water absorption material, wherein the water absorption material is a porous material with water absorption rate of over 100% and hydraulic conductivity of over 1mm / s, and the mass ratio of the water absorption material to NaBH4 is (0.001-1.000) to 1. When the solid hydrolysis hydrogen production material disclosed by the invention is added with water, the added water is quickly and uniformly distributed into the whole system under the effect of the water absorption material, and all parts of the hydrogen production material mixture uniformly experience a hydrolysis hydrogen production reaction of NaBH4, thus the reaction uniformity is effectively improved; relatively complete reaction can be realized with a relatively small amount of water, and the overall hydrogen yield is effectively increased. The effect of the material disclosed by the invention is especially obvious in the case of relatively much solid powder.

Description

technical field [0001] The invention relates to the technical field of hydrolysis hydrogen production, in particular to a solid hydrolysis hydrogen production material comprising solid sodium borohydride and a water-absorbing material loaded with a transition metal salt catalyst. Background technique [0002] As a new type of energy, the development of hydrogen has attracted great attention from everyone, especially the application of hydrogen in fuel cells, which has brought great convenience to everyone's life. However, the storage of hydrogen is an important technical bottleneck restricting the wide application of fuel cell technology. Therefore, the development of efficient and low-cost portable hydrogen production technology is of great significance to promote the wide application of fuel cells. [0003] In order to meet the application requirements of portable fuel cells, the corresponding in-situ hydrogen production technology requires raw materials with high hydroge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/06C01B6/15
CPCY02E60/36C01B3/06C01B6/15
Inventor 郑捷李星国孙冰雪徐嘉祥徐金荣
Owner 苏州清德氢能源科技有限公司
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